Home / 168,516.10-232,445.42-128,141.35

Finding the Fourth Proportional to 168,516.10, 232,445.42 and 128,141.35

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Solution

The fourth proportional to 168,516.10, 232,445.42 and 128,141.35 is: 176,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,516.10 : 232,445.42 = 128,141.35 : x
  2. Step 2: Convert to fraction form
    168,516.10/232,445.42 = 128,141.35/x
  3. Step 3: Cross multiply
    168,516.10x = 232,445.42 × 128,141.35
  4. Step 4: Simplify right side
    168,516.10x = 29,785,870,240.47
  5. Step 5: Solve for x
    x = 29,785,870,240.47/168,516.10
  6. Step 6: Final answer
    x = 176,753.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.